$wi:100%;
*{
  margin: 0;
  padding: 0;
}
body{
  width:100%;
  position: relative;
  background: #eee;
  .erger{
    width:500px;
    height:500px;
    background: skyblue;
    border:1px solid;
    margin: 100px auto;
    h1{
      width:100%;
      text-align: center;
      span{
        float: right;
        margin-right: 15px;
        color:red;
      }

    }p{
       width:80%;
       text-align: center;
       margin-top: 20px;
       margin-left: 10%;
    font-size: 30px;
      input{
        height:30px;
      }
       //height:50px;
       //border:1px solid;
       //display: inline-block;
     }
  }
}